Pipex Pharmaceuticals, Inc. (AMEX: PP) recently announced that Nicholas Stergis, co-founder and vice chairman of the board of directors, has joined the executive management team as chief executive officer, replacing Steve H. Kanzer who will continue to serve as the company’s chairman. In addition, the company announced the resignations of Daniel J. Dorman, a director, and Dr. Charles L. Bisgaier, Pipex’s president, effective immediately.